EP1067530A3 - Optical recording/reproducing apparatus, optical system therefore and coupling lens - Google Patents

Optical recording/reproducing apparatus, optical system therefore and coupling lens Download PDF

Info

Publication number
EP1067530A3
EP1067530A3 EP00114312A EP00114312A EP1067530A3 EP 1067530 A3 EP1067530 A3 EP 1067530A3 EP 00114312 A EP00114312 A EP 00114312A EP 00114312 A EP00114312 A EP 00114312A EP 1067530 A3 EP1067530 A3 EP 1067530A3
Authority
EP
European Patent Office
Prior art keywords
optical system
information recording
optical
recording medium
coupling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP00114312A
Other languages
German (de)
French (fr)
Other versions
EP1067530A2 (en
Inventor
Norikazu c/o Konica Corporation Arai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Konica Minolta Inc filed Critical Konica Minolta Inc
Publication of EP1067530A2 publication Critical patent/EP1067530A2/en
Publication of EP1067530A3 publication Critical patent/EP1067530A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/10—Bifocal lenses; Multifocal lenses
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/1086—Beam splitting or combining systems operating by diffraction only
    • G02B27/1093—Beam splitting or combining systems operating by diffraction only for use with monochromatic radiation only, e.g. devices for splitting a single laser source
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/145—Beam splitting or combining systems operating by reflection only having sequential partially reflecting surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1876—Diffractive Fresnel lenses; Zone plates; Kinoforms
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1876—Diffractive Fresnel lenses; Zone plates; Kinoforms
    • G02B5/189—Structurally combined with optical elements not having diffractive power
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1356—Double or multiple prisms, i.e. having two or more prisms in cooperation
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372—Lenses
    • G11B7/1376—Collimator lenses
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/139—Numerical aperture control means
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
    • G11B7/13922—Means for controlling the beam wavefront, e.g. for correction of aberration passive
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Head (AREA)
  • Lenses (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)

Abstract

An optical pickup apparatus for conducting recording and/or reproducing for an optical information recording medium is provided with a light source; a coupling optical system to change a divergent angle of light flux emitted from the light source; an objective lens optical system for converging the light flux having passed through the coupling optical system on a information recording surface of the optical information recording medium; and a photo detector to detect the reflected light from the information recording surface of the optical information recording medium. The objective lens optical system comprises at least one lens made of a resin and having a positive refracting power, the coupling optical system comprises at least one lens made of a resin and having a positive refracting power and the coupling optical system further comprises an annular band-shaped diffractive surface having a negative diffracting power.
EP00114312A 1999-07-09 2000-07-04 Optical recording/reproducing apparatus, optical system therefore and coupling lens Withdrawn EP1067530A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP19525799 1999-07-09
JP19525799A JP4288769B2 (en) 1999-07-09 1999-07-09 Condensing optical system and optical pickup device for recording and / or reproducing optical information recording medium

Publications (2)

Publication Number Publication Date
EP1067530A2 EP1067530A2 (en) 2001-01-10
EP1067530A3 true EP1067530A3 (en) 2006-02-01

Family

ID=16338138

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00114312A Withdrawn EP1067530A3 (en) 1999-07-09 2000-07-04 Optical recording/reproducing apparatus, optical system therefore and coupling lens

Country Status (5)

Country Link
EP (1) EP1067530A3 (en)
JP (1) JP4288769B2 (en)
KR (1) KR20010049748A (en)
CN (1) CN1147845C (en)
TW (1) TW451077B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002367213A (en) * 2001-06-06 2002-12-20 Konica Corp Optical element of optical pickup device
JP2003287675A (en) * 2002-01-22 2003-10-10 Konica Corp Light convergence optical system, optical pickup device, recording and reproducing device, aberration correcting element, and objective
JP2004005943A (en) 2002-04-26 2004-01-08 Konica Minolta Holdings Inc Registration reproduction optics, objective lens, optical element for aberation compensation, optical pickup system, and orecording/reproducing apparatus, aberration correcting optical element, optical pickup device and recording and reproducing device
SG127721A1 (en) * 2003-04-15 2006-12-29 Konica Minolta Opto Inc Optical pickup device, optical information recording and reproducing apparatus and objective lens
US7656769B2 (en) * 2005-02-25 2010-02-02 Panasonic Corporation Optical pickup and objective optical system for use in the same
JP2007242115A (en) 2006-03-07 2007-09-20 Konica Minolta Opto Inc Optical pickup
CN101405800B (en) * 2006-03-20 2011-04-13 松下电器产业株式会社 Optical head and optical disk device
JP5051178B2 (en) * 2009-05-21 2012-10-17 船井電機株式会社 Optical disk device
US9904068B1 (en) * 2017-01-09 2018-02-27 Asml Netherlands B.V. Reducing an optical power of a reflected light beam

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5475537A (en) * 1993-03-05 1995-12-12 Konica Corporation Optical system for use in recording and reading information on an optical information medium
JPH09115173A (en) * 1995-10-17 1997-05-02 Sankyo Seiki Mfg Co Ltd Optical head device
EP0776004A2 (en) * 1995-11-02 1997-05-28 Konica Corporation Optical system for recording and reproducing an optical recording medium
WO1998019303A1 (en) * 1996-10-31 1998-05-07 Sanyo Electric Co., Ltd. Optical pickup device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5475537A (en) * 1993-03-05 1995-12-12 Konica Corporation Optical system for use in recording and reading information on an optical information medium
JPH09115173A (en) * 1995-10-17 1997-05-02 Sankyo Seiki Mfg Co Ltd Optical head device
EP0776004A2 (en) * 1995-11-02 1997-05-28 Konica Corporation Optical system for recording and reproducing an optical recording medium
WO1998019303A1 (en) * 1996-10-31 1998-05-07 Sanyo Electric Co., Ltd. Optical pickup device
EP0936604A1 (en) * 1996-10-31 1999-08-18 SANYO ELECTRIC Co., Ltd. Optical pickup device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 09 30 September 1997 (1997-09-30) *

Also Published As

Publication number Publication date
KR20010049748A (en) 2001-06-15
TW451077B (en) 2001-08-21
CN1280363A (en) 2001-01-17
JP2001023228A (en) 2001-01-26
EP1067530A2 (en) 2001-01-10
CN1147845C (en) 2004-04-28
JP4288769B2 (en) 2009-07-01

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